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#ifndef STATION_H

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#define STATION_H

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#include "sprite.h"

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#include "vehicle.h"

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typedef struct GoodsEntry {

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	uint16 waiting_acceptance;

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	byte days_since_pickup;

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	byte rating;

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	byte enroute_from;

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	byte enroute_time;

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	byte last_speed;

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	byte last_age;

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} GoodsEntry;

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struct Station {

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	TileIndex xy;

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	TileIndex bus_tile;

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	TileIndex lorry_tile;

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	TileIndex train_tile;

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	TileIndex airport_tile;

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	TileIndex dock_tile;

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	Town *town;

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	// alpha_order is obsolete since savegame format 4

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	byte alpha_order_obsolete;

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	uint16 string_id;

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	ViewportSign sign;

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	uint16 had_vehicle_of_type;

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	byte time_since_load;

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	byte time_since_unload;

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	byte delete_ctr;

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	byte owner;

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	byte facilities;

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	byte airport_type;

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	byte truck_stop_status;

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	byte bus_stop_status;

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	byte blocked_months_obsolete;

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	// trainstation width/height

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	byte trainst_w, trainst_h;

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	byte class_id; // custom graphics station class

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	byte stat_id; // custom graphics station id in the @class_id class

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	uint16 build_date;

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	//uint16 airport_flags;

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	uint32 airport_flags;

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	uint16 index;

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	VehicleID last_vehicle;

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	GoodsEntry goods[NUM_CARGO];

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};

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enum {

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	FACIL_TRAIN = 1,

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	FACIL_TRUCK_STOP = 2,

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	FACIL_BUS_STOP = 4,

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	FACIL_AIRPORT = 8,

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	FACIL_DOCK = 0x10,

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};

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enum {

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//	HVOT_PENDING_DELETE = 1<<0, // not needed anymore

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	HVOT_TRAIN = 1<<1,

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	HVOT_BUS = 1 << 2,

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	HVOT_TRUCK = 1 << 3,

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	HVOT_AIRCRAFT = 1<<4,

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	HVOT_SHIP = 1 << 5,

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	HVOT_BUOY = 1 << 6

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};

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void ModifyStationRatingAround(TileIndex tile, byte owner, int amount, uint radius);

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TileIndex GetStationTileForVehicle(Vehicle *v, Station *st);

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void ShowStationViewWindow(int station);

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void UpdateAllStationVirtCoord();

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VARDEF Station _stations[250];

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VARDEF bool _station_sort_dirty[MAX_PLAYERS];

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VARDEF bool _global_station_sort_dirty;

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#define DEREF_STATION(i) (&_stations[i])

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#define FOR_ALL_STATIONS(st) for(st=_stations; st != endof(_stations); st++)

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void GetProductionAroundTiles(uint *produced, uint tile, int w, int h);

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void GetAcceptanceAroundTiles(uint *accepts, uint tile, int w, int h);

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uint GetStationPlatforms(Station *st, uint tile);

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/* Station layout for given dimensions - it is a two-dimensional array

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 * where index is computed as (x * platforms) + platform. */

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typedef byte *StationLayout;

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struct StationSpec {

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	uint32 grfid;

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	int localidx; // per-GRFFile station index + 1; SetCustomStation() takes care of this

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	enum StationClass {

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		STAT_CLASS_NONE, // unused station slot or so

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		STAT_CLASS_DFLT, // default station class

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		STAT_CLASS_WAYP, // waypoints

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		/* TODO: When we actually support custom classes, they are

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		 * going to be allocated dynamically (with some classid->sclass

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		 * mapping, there's a TTDPatch limit on 16 custom classes in

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		 * the whole game at the same time) with base at

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		 * STAT_CLASS_CUSTOM. --pasky */

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		STAT_CLASS_CUSTOM, // some custom class

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	} sclass;

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	/* Bitmask of platform numbers/lengths available for the station.  Bits

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	 * 0..6 correspond to 1..7, while bit 7 corresponds to >7 platforms or

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	 * lenght. */

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	byte allowed_platforms;

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	byte allowed_lengths;

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	/* Custom sprites */

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	byte tiles;

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	/* 00 = plain platform

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	 * 02 = platform with building

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	 * 04 = platform with roof, left side

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	 * 06 = platform with roof, right side

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	 *

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	 * These numbers are used for stations in NE-SW direction, or these

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	 * numbers plus one for stations in the NW-SE direction.  */

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	DrawTileSprites renderdata[8];

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	/* Custom layouts */

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	/* The layout array is organized like [lenghts][platforms], both being

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	 * dynamic arrays, the field itself is length*platforms array containing

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	 * indexes to @renderdata (only even numbers allowed) for the given

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	 * station tile. */

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	/* @lengths is length of the @platforms and @layouts arrays, that is

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	 * number of maximal length for which the layout is defined (since

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	 * arrays are indexed from 0, the length itself is at [length - 1]). */

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	byte lengths;

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	/* @platforms is array of number of platforms defined for each length.

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	 * Zero means no platforms defined. */

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	byte *platforms;

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	/* @layout is @layouts-sized array of @platforms-sized arrays,

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	 * containing pointers to length*platforms-sized arrays or NULL if

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	 * default OTTD station layout should be used for stations of these

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	 * dimensions. */

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	StationLayout **layouts;

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	/* Sprite offsets for renderdata->seq->image. spritegroup[0] is default

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	 * whilst spritegroup[1] is "CID_PURCHASE". */

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	struct SpriteGroup spritegroup[2];

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};

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/* Here, @stid is local per-GRFFile station index. If spec->localidx is not yet

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 * set, it gets new dynamically allocated global index and spec->localidx is

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 * set to @stid, otherwise we take it as that we are replacing it and try to

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 * search for it first (that isn't much fast but we do it only very seldom). */

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void SetCustomStation(byte stid, struct StationSpec *spec);

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/* Here, @stid is global station index (in continous range 0..GetCustomStationsCount())

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 * (lookup is therefore very fast as we do this very frequently). */

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struct StationSpec *GetCustomStation(enum StationClass sclass, byte stid);

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/* Get sprite offset for a given custom station and station structure (may be

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 * NULL if ctype is set - that means we are in a build dialog). The station

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 * structure is used for variational sprite groups. */

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uint32 GetCustomStationRelocation(struct StationSpec *spec, struct Station *stat, byte ctype);

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int GetCustomStationsCount(enum StationClass sclass);

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#endif /* STATION_H */